I made a pair of T-shirt shorts for myself! I took a stab at drafting my own pattern based off of a pair of shorts I already had... and it worked! I even managed to include part of the graphic that was on one of the old T-shirts I used.
...and since Zach's first comment about the shorts I had previously made for him was "it doesn't have pockets" I made him a second pair of shorts WITH pockets!
Now we can BOTH be comfy and stylish in our sleepwear!